This GE thru-the-wall sleeve features a solid-sided wall case made from galvanized steel with a baked enamel finish. A special sealing compound was used to coat welded areas to prevent rust and corrosion.
A polymer gasket protects the opening to provide a snug weather seal, plus the panels on the interior and between the case and grille provide weather protection before the chassis is installed.
This GE product is a universal accessory and will work with any standard-sized TTW unit. It includes a matching grille.